Building material



July 20 1926.

J. H. YOUNG BUILDING MATERIAL Filed Dec. 19, 1921 Patentea July 2o, 1926'.

UNITED- STATES" PATENTjOFF-ic JAMES HOWARD YOUNG, 0F PITTSBURGH, PENNSYLVANIA, ASSIGNOB T0 H. H.

ROBERTSON COMPANY, OE PITTSBURGH,

PENNSYLVANIA. w

4BUILDING MATERIAL.

PENNSYLVANIA, A CORPORATION. or

Application led December 19, 1921. Serial No. 523,359.

The present invent-ion relates to an improved article of manufacture having an exterior metal surface, which is affixed to a foundation or underlying member by a layerof asphalt or like bituminous material.

The present application is a continuation in part of my application led March 27, 1920, seriaiNo. 369,294, in that in claims certain subject-matter disclosed but not claimed in said 'a plication.

`The invention lias for its object to provide an article of thev character described, which is highly resistant to the deleterious action of the weather, acid and alkali fumes, and fire, and Which can be produced at a. minimum cost so as to be commercially available as a relatively inexpensive and durable material for building purposes.

The foundation or underlying member may be of metallic or non-metallic' material, either rigid or flexible, and in the present instance said foundation member is represented as a metal sheet, such as is now used Lin building constructions for roofing and siding purposes, andto facilitate description, said foundation member will be herenous material and aflixed thereby to the metal sheet, as not:r commonly practiced in the manufacture of asphalt protected metal sheets and such as shown and described in *U. S. Patent/No. 1,277,755 dated September 3, 1918. The asphalt or like bituminous layer is provided with an exterior surface or coating of metal, preferablylead, zinc, copper or like so-called `non-corrodible metals, which surface is composed of a layer of finely divided metal articles Whichare embedded in the asphaltic layer, and an additional layer of finely divided metal parti cles which are molecularly united with the metal particles embedded in the asphaltic la er. f

Q ,lhe finely divided particles of metal forming the layer which is embedded in the asphalt layer are projected into the asphalt the like, layers c, d, are herein represented. The

layer, and the finely divided particles forming the metallic layer which lis molecularly united with the rst mentioned metallic layer are projected against the embedded particles under suicient pressure to weld or molecularly unite the metal particles of both layers and thus provide the article to be protected with a metal surface or coating of substantially uniform thickness which conforms to thel contour of the bituminous covered article.

The metal coating or surface may be made of any desired thickness, as succeeding layers of metalI particles may be projected upon and molecularly united With theA underlying layer of metal particles.

The metal coating or surface may be made of a suicient nuinber of-molecularly united layers to provide a non-porous coating or surface upon the asphalt layer, but it is preferred to employ a relatively thin metal coating or surface which ismore or less porous, as ,by so doing provision is made for the escape of the volatile ingredients in the asphalt and blistering of the metal coating is thereby prevented.

These and other features of this invention will be pointed out in the claims at the end of this specication'.

Fig. l is a plan of a suiiicient portion of one form of protected metal sheet embodying the invention to enable it to be understood, and a Fig. 2, a section on an enlarged scale taken on the line 2-2, Fig. l.

Referring to the drawing, a represents the `article to be protected, which as above stated will be designated a metal sheet, which in the present instance is covered on all sides and edges with a layer b of asphalt or like bituminous material. The asphalt layer b is provided with a protective metal coating composed of a-plurality of layers of finely divided metal, such as lead, zinc, copper and and inthe present instance, two

metal layers c, d are composed of finely divided metal particles 10,12, respectively,

which are projected. upon the asphalt coated metal sheet a with any suitable apparatus, as for instance, substantially that shown and described4 in U. S. Patent No. 495,107 dated April 11,1893.

j The 'finely divided metal particles are los more or less tacky or yielding condition and preferably soon after the as halt coating has been applied to the metal s eet, with the result that the metal particles 10, which strike against the asphalt layer b penetrate into and are embedded in the asphalt layer,

and as they encounter a minimum resistance, they retain their original shape'which, for sake of distinction, is represented in Fig.

underlyin or embedded metal layer c. the other and, the metal particles 12 which are projected against vthe layer c of embedded metal particles, strike the same with sufficient force to generate heat sufficient to cause the metal particles to cohere at 'their contacting points 'or surfaces and become Welded or molecularly unitedland form the metal llayer d, which is thus molecularly united or Welded to the underlyingor embedded metal layer c. The metal particles l2 comprising the overlying or exterior layer d, are more or less distorted or changed from 4their original sha e by impact against the particles ofthe un crlying layer c, and this change or distortion 1s represented by the irregular or other than round shape .of the particles comprising the exterior or surface layer, as represented in Fig. 2.

It is evident that by going over the ashalt covered metal sheet with the finely ivided metal particles a suflicient number of times or by going over theasphalt coated metal sheet slowly enough, a plurality of layers d may be builtupon the embedded layer c, to provide the asphalt coated metal sheet with a non-porous'metal coating composed of the underlying embedded layer c and a plurality of overlying or Welded layers cl, but it is preferred to provide the asphalt coated metal sheet a with a metal coating which is more or less porous for two purposes, to Witto prevent blistering as 'above described and to economize in. the'cost of the protected metal sheet, which result may be I to the embedded layer c.

'2 as round or spherical, and thus form tie` n.

- metallic coating for the `obtained. Wi-th a single metal vlayer d Welded y irmlyaixed to the asphalt coa-ted metalV sheet, and a highly eiiicient protected .article is obtained, which is especially usefulfor building purposes, as thev exterior metal sur-4 face or coating c, d lefficiently protects the;- `asphalt against deterioration and thereby prolonge the value of the latter for protect` ing the metal-sheet-a against corrosion', and" packed and shipped as is now required with asphalt coated metal articles now commonly i Yprepared and known to me., Considerable difficulty lhas heretoforebeen experienced in the shipment of protected metal sheets of the character having a bituminous exterior surface or coating because ofthe fact that, inpractice, these sheets are piled one upon the other and due to the Weight of the steel, there is considerable pressure developed,

which causes the adjacent bituminous coatings to fuse. together, which results in the sticking together of the separate sheets composing the pile. The separation of the individual sheets which are stuck in a pile usual ly results in damaging the protecting layers.

able for building purposes, as a superior adhesion between the exteriormetal coating or surface and the asphalt covered article is obtained, `and the metal coating conforms -to the. contour of the asphalt coated article, is non-inflammable and consequentlyV highly advantageous as a protection against fire, and-can bel painted in any color, to obtain any article or pleasing design or color effeet desired,`as it has been found that the rotected metal article is itself unaltered 1n color by the. underlying bituminous layer and prevents discoloration of an ordinary paint film applied thereto.

eny

Furthermore, the exterior metaly coating i when uncovered imparts to the asphalt cov-I ered article the naturally dull appearance of the metal which comprisesthe coating, and anA exterior surfaceJ which is moreor less rougho'r feathery in appearance, and when painted the relatively rough character of the metal coating jaiords an excellent surface for the adhesion ofthe paint,

Claims 1. self vsupporting roofing or siding sheet comprising .a steel sheet provided on one surface with a protecting Dlayer of bituminous material, and a metallic coating covering the bituminous llayer and which 1s formed as a part of the article, and also of a' character'whereby4 the protected sheet is also enables the finishedarticle to'be com.

mercially used. substantially as soon as produced, as itc'anpbe immediatelypacked, and shipped to the job, Ythereby avoiding the Y necessity of storing .and drying andthe expense attending the saine, before the asphaltv covered metal article '.-c'ould be handled,

provided Withl an external anti-stick metallic surface whose 'color or appearance is substantially uninfluenced by' the bituminous vm-aterial,and by virtue of which a lurality 'of-the protected 'steel sheets vmay -for 'shi ment superposed on one another and lwith fbituminoussurfaces. in-ad'acent relapiled tion .Without liability 2. An improved' articlelo'f .manufacture-I! l composed of a.' foundatien member having a layer 'of bituminous material thereon, and a metal coating -for -the bituminous layer whose color or appearance is substantially uninfluenced by the bituminous layer, and which is formed as a part of the article, and comprising a layer of metal particles embedded in said bituminous layer, and a layer of metal particles molceularly united with the particles of the embedded layer.

3. An improved article of manufacture havingr a layer of bituminous material provided with a metal coating for the bituminous niaterial, Whose color or appearance is substantially uniufluenced by the bituminous material, and which is formed as a part of said article, and comprising a layer of metal particles embedded in said bituminous layer, and a layer of metal particles' molecularly united with the particles of the embedded layer.

4. An improved article of manufacture comprising a roofing material having a foundation member, a layer of bituminous material thereon, and a continuous and Wholly metallic coating formed as a part of said article and itself composed of particles and imparting a relatively rough exterior metallic surface to the article, and providing the article with an exterior metallic surface Whose color or appearance is substantially uninfiuenced by the bituminous layer.

In testimony7 whereof, I have signed my name to this s ecication.

JA ES HOWARD YOUNG. 

